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Internal Medicine

Kolawole Oloniyo, MD

Sees patients in Largo, MD · Fairfax, VA · Bowie, MD · Maryland, Virginia

Summary

Dr. Kolawole Oloniyo, MD is an internal medicine doctor at 1221 Mercantile Ln, Largo, MD 20774. Phone: (301) 618-5700. Accepts Medicare assignment. In 2024, Kolawole Oloniyo had 46 Original Medicare patients and 135 services. NPI 1063806131. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1221 Mercantile Ln, Largo, MD 20774 · Directions (2 more locations)
  • Phone: (301) 618‑5700
  • Medicare: Accepts Medicare assignment
  • Group practice: Kaiser Foundation Health Plan of the Mid Atlantic States, Inc
  • Medical school: graduated 2013 (13 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Kolawole Oloniyo, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Kolawole Oloniyo accept Medicare assignment?
Yes. Medicare's clinician data says Kolawole Oloniyo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Kolawole Oloniyo see?
In 2024, CMS data shows 46 Original Medicare patients and 135 services for Kolawole Oloniyo. This counts Original Medicare only and measures volume, not quality.
What is Kolawole Oloniyo's NPI number?
1063806131. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Kolawole Oloniyo, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients46
Services billed to Medicare135
Different services or procedures15
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)30 services
  2. Admn sarscov2 vacc 1 dose (90480)18 services
  3. Sarscv2 vac 30mcg trs-suc im (91320)18 services
  4. Administration of influenza virus vaccine (G0008)18 services
  5. Influenza vaccine split virus, preservative free (90662)16 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure63%
  • High cholesterol28%
  • Diabetes24%
  • Arthritis24%

Practice locations

Addresses where Kolawole Oloniyo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kolawole Oloniyo as a member of this group (CMS data updated October 2, 2026).

  • Kaiser Foundation Health Plan of the Mid Atlantic States, Inc1,899 clinicians in the group

Specialties

Find other Internal Medicine doctors in Maryland →

Other internal medicine doctors in Largo

Clinicians with the same Medicare primary specialty in Largo, MD — not a recommendation.

All internal medicine doctors in Largo →

Other clinicians in Kaiser Foundation Health Plan of the Mid Atlantic States, Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2013 (13 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1063806131
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians